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Built 2026-10-19 (19 October 2026)

Heyuan Threshold Days by Year (CHM00059293)

12 fixed thresholds counted per year at Heyuan (CHM00059293): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Heyuan Thresholds

  • Heyuan: days with a maximum temperature at or above 30 C (86 F) in 69 years, most in 2021 with 198.
  • Heyuan: days with a maximum temperature at or above 35 C (95 F) in 69 years, most in 2021 with 110.
  • Heyuan: days with a maximum temperature at or above 90 F (32.2 C) in 69 years, most in 2021 with 164.
  • Heyuan: nights with a minimum temperature at or above 20 C (68 F) in 68 years, most in 2005 with 204.
  • 12 fixed thresholds have at least one qualifying day at Heyuan.
69 years with a qualifying day
Days at or above 30 C (86 F) per year at Heyuan Days per year at Heyuan with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 198 in 2021. 0501001502001952: 1481953: 1421954: 1401955: 1471956: 1451957: 1271958: 1451959: 1351960: 1391961: 1441962: 1361963: 1611964: 1491965: 1351966: 1481967: 1421968: 1261969: 1491970: 1371971: 1321972: 1391973: 1221974: 1431975: 1391976: 1201977: 1631978: 1361979: 1181980: 1341981: 1231982: 1251983: 1431984: 1301985: 1351986: 1571987: 1391988: 1241989: 1391990: 1361991: 1471992: 1281993: 1251994: 1371995: 1351996: 1491997: 1251998: 1511999: 1402000: 1542001: 1402002: 1532003: 1542004: 1542005: 1552006: 1322007: 1362008: 1342009: 1522010: 1102011: 1342012: 1442014: 1472020: 1782021: 1982022: 1752023: 1442024: 1532025: 1202026: 591952195919661973198019871994200120082021
Days per year at Heyuan with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 198 in 2021.
Days at or above 30 C (86 F) per year at Heyuan
YearDaysDecade average
1952148141.1
1953142141.1
1954140141.1
1955147141.1
1956145141.1
1957127141.1
1958145141.1
1959135141.1
1960139142.9
1961144142.9
1962136142.9
1963161142.9
1964149142.9
1965135142.9
1966148142.9
1967142142.9
1968126142.9
1969149142.9
1970137134.9
1971132134.9
1972139134.9
1973122134.9
1974143134.9
1975139134.9
1976120134.9
1977163134.9
1978136134.9
1979118134.9
1980134134.9
1981123134.9
1982125134.9
1983143134.9
1984130134.9
1985135134.9
1986157134.9
1987139134.9
1988124134.9
1989139134.9
1990136137.3
1991147137.3
1992128137.3
1993125137.3
1994137137.3
1995135137.3
1996149137.3
1997125137.3
1998151137.3
1999140137.3
2000154146.4
2001140146.4
2002153146.4
2003154146.4
2004154146.4
2005155146.4
2006132146.4
2007136146.4
2008134146.4
2009152146.4
2010110133.8
2011134133.8
2012144133.8
2014147133.8
2020178146.7
2021198146.7
2022175146.7
2023144146.7
2024153146.7
2025120146.7
202659146.7
First to last qualifying date each year at Heyuan For each year, a bar from the first to the last day at Heyuan meeting 30 C (86 F). 1952: 8 April 1952 to 12 November 19521953: 2 March 1953 to 25 November 19531954: 2 May 1954 to 13 November 19541955: 17 March 1955 to 14 November 19551956: 13 April 1956 to 29 October 19561957: 6 April 1957 to 14 October 19571958: 9 April 1958 to 14 November 19581959: 4 April 1959 to 24 November 19591960: 1 March 1960 to 24 November 19601961: 22 April 1961 to 11 November 19611962: 15 March 1962 to 13 October 19621963: 23 March 1963 to 8 November 19631964: 6 April 1964 to 20 October 19641965: 24 March 1965 to 16 November 19651966: 5 March 1966 to 16 November 19661967: 9 April 1967 to 9 November 19671968: 16 March 1968 to 9 December 19681969: 21 March 1969 to 15 November 19691970: 3 May 1970 to 14 November 19701971: 14 April 1971 to 4 November 19711972: 20 March 1972 to 5 November 19721973: 29 March 1973 to 20 October 19731974: 31 March 1974 to 7 November 19741975: 16 April 1975 to 28 October 19751976: 22 April 1976 to 12 October 19761977: 27 February 1977 to 7 November 19771978: 11 April 1978 to 27 October 19781979: 16 April 1979 to 10 November 19791980: 5 April 1980 to 12 November 19801981: 1 April 1981 to 31 October 19811982: 23 March 1982 to 31 October 19821983: 25 April 1983 to 21 October 19831984: 8 May 1984 to 12 November 19841985: 22 April 1985 to 23 November 19851986: 11 April 1986 to 26 October 19861987: 7 March 1987 to 26 November 19871988: 14 March 1988 to 24 October 19881989: 28 April 1989 to 7 November 19891990: 22 April 1990 to 20 November 19901991: 12 April 1991 to 23 November 19911992: 19 April 1992 to 1 November 19921993: 24 April 1993 to 9 November 19931994: 4 April 1994 to 14 November 19941995: 16 April 1995 to 30 October 19951996: 26 April 1996 to 8 November 19961997: 29 April 1997 to 14 November 19971998: 27 March 1998 to 16 November 19981999: 3 March 1999 to 23 November 19992000: 22 March 2000 to 25 October 20002001: 24 March 2001 to 2 November 20012002: 27 March 2002 to 13 November 20022003: 1 March 2003 to 7 November 20032004: 4 April 2004 to 14 November 20042005: 20 April 2005 to 28 November 20052006: 3 April 2006 to 10 November 20062007: 15 April 2007 to 26 October 20072008: 6 April 2008 to 7 November 20082009: 26 February 2009 to 10 November 20092010: 27 February 2010 to 14 October 20102011: 9 April 2011 to 5 November 20112012: 18 March 2012 to 10 November 20122014: 26 March 2014 to 1 November 20142020: 26 February 2020 to 23 November 20202021: 23 February 2021 to 7 November 20212022: 13 March 2022 to 29 November 20222023: 16 April 2023 to 11 December 20232024: 21 February 2024 to 20 October 20242025: 13 March 2025 to 8 November 20252026: 25 March 2026 to 22 September 202619521961197019791988199720062021JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Heyuan meeting 30 C (86 F).
First to last qualifying date each year at Heyuan
YearFirst dateLast date
19521952-04-081952-11-12
19531953-03-021953-11-25
19541954-05-021954-11-13
19551955-03-171955-11-14
19561956-04-131956-10-29
19571957-04-061957-10-14
19581958-04-091958-11-14
19591959-04-041959-11-24
19601960-03-011960-11-24
19611961-04-221961-11-11
19621962-03-151962-10-13
19631963-03-231963-11-08
19641964-04-061964-10-20
19651965-03-241965-11-16
19661966-03-051966-11-16
19671967-04-091967-11-09
19681968-03-161968-12-09
19691969-03-211969-11-15
19701970-05-031970-11-14
19711971-04-141971-11-04
19721972-03-201972-11-05
19731973-03-291973-10-20
19741974-03-311974-11-07
19751975-04-161975-10-28
19761976-04-221976-10-12
19771977-02-271977-11-07
19781978-04-111978-10-27
19791979-04-161979-11-10
19801980-04-051980-11-12
19811981-04-011981-10-31
19821982-03-231982-10-31
19831983-04-251983-10-21
19841984-05-081984-11-12
19851985-04-221985-11-23
19861986-04-111986-10-26
19871987-03-071987-11-26
19881988-03-141988-10-24
19891989-04-281989-11-07
19901990-04-221990-11-20
19911991-04-121991-11-23
19921992-04-191992-11-01
19931993-04-241993-11-09
19941994-04-041994-11-14
19951995-04-161995-10-30
19961996-04-261996-11-08
19971997-04-291997-11-14
19981998-03-271998-11-16
19991999-03-031999-11-23
20002000-03-222000-10-25
20012001-03-242001-11-02
20022002-03-272002-11-13
20032003-03-012003-11-07
20042004-04-042004-11-14
20052005-04-202005-11-28
20062006-04-032006-11-10
20072007-04-152007-10-26
20082008-04-062008-11-07
20092009-02-262009-11-10
20102010-02-272010-10-14
20112011-04-092011-11-05
20122012-03-182012-11-10
20142014-03-262014-11-01
20202020-02-262020-11-23
20212021-02-232021-11-07
20222022-03-132022-11-29
20232023-04-162023-12-11
20242024-02-212024-10-20
20252025-03-132025-11-08
20262026-03-252026-09-22

Every Fixed Threshold

Fixed thresholds at Heyuan
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days69198202159
35 C (95 F): Days6911020212
90 F (32.2 C): Days69164202127
100 F (37.8 C): Days20920224
0 C (32 F): Frost days (min14419552
20 C (68 F): Tropical nights (min682042005122
25 C (77 F): Days with min68120202148
10 mm (0.39 in): Days with 10 mm or more rain667719599
25 mm (0.98 in): Days with 25 mm or more rain663919976
50 mm (1.97 in): Days with 50 mm or more rain661719932
100 mm (3.94 in): Days with 100 mm or more rain49419661
200 mm (7.87 in): Days with 200 mm or more rain8219661

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1952.

Download the Data

  • Data for Heyuan threshold days by year: CSV or JSON. Field meanings are on the data page.

Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Data as of 2026-10-17 (17 October 2026). Threshold counts are computed by this site.

Data as of . Last revised (2026-10-17).